It is a 1970's Winchester, as such it is a good rifle but not a collectible rifle. I would do to it what pleases you, you won't hurt the value and you probably won't get your money back if you sell it. However I doubt you would sell it so that doesn't matter.

One of the sanest, surest, and most generous joys of life comes from being happy over the good fortune of others.
Archibald Rutledge